Zaman, V In vitro trials of metronidazole against Balantidium coli. [electronic resource] - Transactions of the Royal Society of Tropical Medicine and Hygiene 1969 - 152 p. digital Publication Type: Journal Article ISSN: 0035-9203 Subjects--Topical Terms: AnimalsBalantidiasis--microbiologyBalantidium--drug effectsHumansMetronidazole--pharmacologySwine